"Another approach is to tinker with the amount of solar radiation that hits the Earth. Changing the planet's albedo by as little as 1 per cent could have a significant impact on global warming. An advantage of this approach is that CO2 levels could be allowed to rise to perhaps four or even eight times pre-industrial levels, which would boost agricultural output with improved carbon fertilisation."

Mirrors, sulfates, super-reflective clouds...

I'm tagging this as science but I really want Science!

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Yeah, I've talked to people about this. On the one hand, this is some pretty awesome Science! that is amazingly fun to read about. Build those orbital space mirrors to reflect sunlight while nuking the sea to make clouds.

On the other hand, there's probably a few simpler methods to deal with making too much CO2.

Though, the carbon scrubbers thing actually looks halfway cool and reasonable, although there's not a lot of details in that article. Plus you have a lot of adventure ops in trying to save them from gobli...whoops, wrong considerations to apply.